Researchers dig deep to unveil causes of decline for North America’s smallest falcon

Peer-Reviewed Publication

RAPTOR RESEARCH FOUNDATION

 

IMAGE: MALE AMERICAN KESTREL, MARKED WITH A WING TAG, FLYING OVER SUSSEX COUNTY, NEW JERSEY. view more 

CREDIT: PHOTO BY HERB HOUGHTON.

The American Kestrel, a colorful and charismatic falcon, has kept researchers scratching their heads for years. Population declines are confirmed across North America, but who or what to blame has remained elusive. A new paper, “Evidence of Continuing Downward Trends in American Kestrel Populations and Recommendations for Research Into Causal Factors,” published in the Journal of Raptor Research, provides needed updates on the status of kestrel populations at the regional scale, and offers a comprehensive discussion on the potential causes for the species’ decline. Importantly, the authors point out that kestrels could be experiencing trouble outside of the breeding season, a part of their annual cycle that is arguable understudied. This paper provides an updated common ground for raptor researchers through which they can streamline study priorities, an important recalibration if this beloved falcon is to remain numerous in our skies.  

 

Authors David M. Bird and John A. Smallwood posit that multiple factors are likely causing kestrel declines, evidenced by the fact that, while many populations are declining, some are rebounding or stabilizing. Not all kestrels are encountering the same challenges. Bird and Smallwood present essential research pathways moving forward, including: investigating the impact of Cooper’s Hawks on kestrel distributions and survival, assessing habitat degradation on the kestrel’s wintering grounds (which often fall outside of U.S. borders), looking at fine-scale changes in habitat quality on the breeding grounds, examining the impacts of climate change on the availability of prey species for kestrels, determining how important grasshoppers are as a prey species, and studying the impacts of rodenticides and pesticides on the health of kestrel populations.

 

Not only are focused research recommendations put forth in this paper, but several theories about the kestrel decline are put to rest. West Nile virus and competition for nesting cavities from European starlings are no longer considered significant threats to kestrel success.

 

Raptors serve as bioindicators, meaning they shed light on the overall health of the ecosystems in which they reside. The American kestrel is no exception. To support these birds in their quest for survival is to support environmental health across North America, and this is not just a cause for experts. Citizen scientists collect essential data on various aspects of the kestrel picture by participating in projects like the Breeding Bird Survey. Without public participation our understanding of this species’ decline would be far less comprehensive.

 

Proof of this lies in the study design of Bird and Smallwood’s work. They analyzed four types of data that spanned between 38 and 55 years and depended on the participation of citizen scientists: the Breeding Bird Survey, Christmas Bird Count, migration data from two sites located along flyways in the east, and nest box monitoring programs. The latter, according to Smallwood, “has generated an invaluable database that allows us to examine not only population trends but also lots of aspects of kestrel behavior and ecology.”

 

Notably, Breeding Bird Surveys revealed that kestrel declines have been observed in 23 of 25 bird conservation regions, with the mid-Atlantic seeing the worst of it. Surveys across Canada also showed high rates of decline. Population increases occurred in only 3 of these conservation regions, including the Chihuahuan Desert. The author’s further assessment of these trends suggests that the magnitude of decline may be lessening, meaning the declines are real, but that extinction is not the only possible outcome. We may just see fewer and fewer kestrels, until we consistently see few — a quieter, blander, sparsely-falconed landscape.

 

Smallwood and Bird bring to light the nuanced reality of conservation by showing just how interwoven threats to wildlife can be. This assessment of casual factors in the American kestrel’s decline illustrates that human activities are making life difficult for this beloved falcon, yet no one issue is to blame. “That the population has experienced such a marked decline should be a wake-up call,” says Smallwood. “Something is out of kilter across North American ecosystems and the problem could be much more widespread than for just this remarkable species.”

  

Researcher monitoring a kestrel nest box in Hope Township, New Jersey.

CREDIT

Photo by Mary Anne Smallwood

Female American Kestrel protecting her brood in a nest box in northwestern New Jersey.

CREDIT

Photo by John Smallwood.

 

Paper

Bird, M. David and Smallwood, A. John (2023). Evidence of Continuing Downward Trends in American Kestrel Populations and Recommendations for Research Into Causal Factors. Journal of Raptor Research, 57(2):000-000.

 

Notes to Editor:

 

1. The Journal of Raptor Research (JRR) is an international scientific journal dedicated entirely to the dissemination of information about birds of prey. Established in 1967, JRR has published peer-reviewed research on raptor ecology, behavior, life history, conservation, and techniques. JRR is available quarterly to members in electronic and paper format.

 

2. The Raptor Research Foundation (RRF) is the world’s largest professional society for raptor researchers and conservationists. Founded in 1966 as a non-profit organization, our primary goal is the accumulation and dissemination of scientific information about raptors. The Foundation organizes annual scientific conferences and provides competitive grants & awards for student researchers & conservationists. The Foundation also provides support & networking opportunities for students & early career raptor researchers.

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JOURNAL

Journal of Raptor Research

DOI

10.3356/JRR-22-35 

METHOD OF RESEARCH

Data/statistical analysis

SUBJECT OF RESEARCH

Animals

ARTICLE TITLE

Evidence of Continuing Downward Trends in American Kestrel Populations and Recommendations for Research into Causal Factors

Nebraska scientists closing in on long-lasting swine flu vaccine

Peer-Reviewed Publication

UNIVERSITY OF NEBRASKA-LINCOLN

 

IMAGE: A TEAM LED BY ERIC WEAVER, DIRECTOR OF THE NEBRASKA CENTER FOR VIROLOGY, HAS DEVELOPED A ROBUST VACCINE AGAINST A STRAIN OF SWINE INFLUENZA. FRAMED BY A MODEL OF NUCLEIC ACID PROTEINS, THE TEAM INCLUDES (FROM LEFT) WEAVER, MATT PEKAREK, A GRADUATE STUDENT IN THE WEAVER LAB; CEDRIC WOOLEDGE, A TECHNICIAN WITH THE INSTITUTIONAL ANIMAL CARE PROGRAM; DAVID STEFFEN, WITH THE NEBRASKA VETERINARY DIAGNOSTIC CENTER; AND NICHOLAS JEANJAQUET AND ERIKA PETRO-TURNQUIST, DOCTORAL STUDENTS IN THE WEAVER LAB. view more 

CREDIT: CRAIG CHANDLER|UNIVERSITY COMMUNICATION AND MARKETING|UNIVERSITY OF NEBRASKA-LINCOLN

A successful long-term experiment with live hogs indicates Nebraska scientists may be another step closer to achieving a safe, long-lasting and potentially universal vaccine against swine flu.

The results are not only important to the pork industry, they hold significant implications for human health. That’s because pigs act as “mixing vessels,” where various swine and bird influenza strains can reconfigure and become transmissible to humans. In fact, the 2009 swine flu pandemic, involving a variant of the H1N1 strain, first emerged in swine before infecting about a fourth of the global population in its first year, causing nearly 12,500 deaths in the United States and perhaps as many as 575,000 worldwide, according to the Centers for Disease Control and Prevention.

“Considering the significant role swine play in the evolution and transmission of potential pandemic strains of influenza and the substantial economic impact of swine flu viruses, it is imperative that efforts be made toward the development of more effective vaccination strategies in vulnerable pig populations,” said Erika Petro-Turnquist, a doctoral student and lead author of the study recently published in Frontiers in Immunology.

Petro-Turnquist is advised by Eric Weaver, associate professor and director of the Nebraska Center for Virology. Weaver’s laboratory is spearheading an effort that uses Epigraph, a data-based computer technique co-developed by Bette Korber and James Theiler of Los Alamos National Laboratory, to create a more broad-based vaccine against influenza, which is notoriously difficult to prevent because it mutates rapidly.

Pork producers currently try to manage swine flu by using commercially available vaccines derived from whole inactivated viruses and weakened live viruses. As of 2008, about half of the vaccines in use in the United States were custom-made for specific herds — an expensive, time-consuming and not very effective strategy because of the rapidity with which swine influenza evolves.

The Epigraph algorithm enables scientists to analyze countless amino acid sequences among hundreds of flu virus variants to create a vaccine “cocktail” of the three most common epitopes — the bits of viral protein that spark the immune system’s response. It could be a pathway to a universal flu vaccine, which the National Institutes of Health defines as a vaccine that is at least 75% effective, protects against multiple types of influenza viruses for at least one year and is suitable for all age groups.

“The first epitope looks like a normal influenza vaccine gene, the second one looks a little weird and third is more rare,” Weaver said. “We’re reversing the evolution and bringing these sequences that the immune system recognizes as pathogens back together. We’re computationally re-linking them and that’s where the power of this vaccine is coming from, that it provides such good protections against such a wide array of viruses.”

In another strategy to heighten effectiveness, the vaccine is delivered via adenovirus, a common virus that causes cold-like symptoms. Its use as a vector triggers additional immune response by mimicking a natural viral infection.

Two years ago, Weaver’s team published initial results in the journal Nature Communications, based on tests in mice and pigs. Those findings indicated the Epigraph-developed vaccine yielded immune response signatures and physiological protection against a much wider variety of strains than a widely used commercial vaccine and wildtype flu strains.

The follow-up study is apparently the first longitudinal study comparing the onset and duration of an adenovirus-vectored vaccine with that of a whole inactive virus vaccine. Petro-Turnquist and Weaver, along with Matthew Pekarek, Nicholas Jeanjaquet and Hiep Vu of the Department of Animal Science, Cedric Wooledge of the Office of Research and Economic Development and David Steffen of the Nebraska Veterinary Diagnostic Center, observed 15 Yorkshire cross-bred female pigs over a period of about six months, the typical lifespan of a market hog.

One group of five received the Epigraph vaccine, a second group of five received a commercial whole inactive virus vaccine, and a third group of five received a saline solution to serve as the control group. The pigs received their initial vaccination at three weeks of age and a booster shot three weeks later. Their antibody levels and T-cell responses were measured weekly for the first month and every 30 days thereafter. At six months of age, they were exposed to a strain of swine flu divergent from those directly represented in the vaccine.

The pigs that received the Epigraph vaccine showed more rapid and long-lasting antibody and T-cell responses to the vaccines. After exposure to the swine flu virus, the Epigraph-vaccinated hogs showed significantly better protection against the disease — less viral shedding, fewer symptoms of infection and stronger immune system responses.

“Those pigs weighed about five pounds when we vaccinated them and by the end of the study, six months later, they were over 400 pounds,” Weaver said. “It’s kind of amazing that this vaccine would maintain itself over that rate of growth. It continues to expand as the animal grows.”

Weaver’s team continues to pursue the research, with next steps including larger studies and possibly a commercial partnership to bring the vaccine to market.

“The more times we do these studies, the more confident we get that this vaccine will be successful in the field,” Weaver said.

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JOURNAL

Frontiers in Immunology

DOI

10.3389/fimmu.2023.1143451 

METHOD OF RESEARCH

Experimental study

SUBJECT OF RESEARCH

Animals

ARTICLE TITLE

Adenoviral-vectored epigraph vaccine elicits robust, durable and protective immunity against H3 influenza A virus in swine

Study: Doing good for others is good for children’s and teens’ mental, physical health

Peer-Reviewed Publication

UNIVERSITY OF TEXAS HEALTH SCIENCE CENTER AT HOUSTON

Children and teenagers who volunteer tend to flourish mentally and physically, according to a new study from UTHealth Houston.

The study, led by Kevin Lanza, PhD, assistant professor of epidemiology, human genetics, and environmental sciences at UTHealth Houston School of Public Health, was published recently in JAMA Network Open.

Overall, the research team found that youths who had volunteered in the past year were in better physical health, had a more positive outlook on life, and were less likely to have anxiety, depression, or behavioral problems compared to their peers who did not volunteer.

“These study results bring optimism that youth volunteering could be a win-win, where youth are serving society to their own benefit,” said Lanza, who is based in Austin. “Further, youths may be joined by household members and others while volunteering, strengthening social bonds while building community.”

The positive effects of volunteering on the health and well-being of adult volunteers is well-established, and two past studies with small sample sizes have shown that teen volunteers may be in better health, and more engaged at school, than their peers. However, Lanza said the effect of volunteering on youths remained largely unknown, inspiring him to launch the study.

Lanza’s team analyzed parent-reported data from a long-running national survey tracking the health and well-being of U.S. children and teenagers, focusing on nearly 52,000 children and teens ages 6 to 17 who were surveyed from 2019-2020. Of those respondents, one-third of children and just over half of teens had done volunteer work in the past year.

Parents whose kids volunteered were 33% more likely to say their child was in “very good” to “excellent” health compared to parents whose kids did not volunteer. Those parents were also between 18% and 35% less likely to say their child had battled depression or anxiety, or had behavioral problems, in the past year.

Moreover, children and teens who did volunteer work were 66% more likely to be “flourishing” – defined based on how parents answered questions about their kids’ curiosity, willingness to complete tasks, and ability to stay calm when faced with challenges.

One limitation of the study is potential response bias from parent-reported data. Furthermore, researchers noted, the study results do not answer the question of whether kids who were already healthy and flourishing were more likely to volunteer. Lanza hopes to explore the cause-and-effect relationship of volunteering on kids’ health and well-being more in the future.

“There is a wealth of volunteering options for youth in different settings – parks, schools, hospitals – and with different purposes, such as environmental conservation or health promotion,” he said. “Volunteer experiences may help shape values and interests in youth that track into adulthood.”

Co-authors with UTHealth Houston School of Public Health included Austin-based researchers Ethan Hunt, PhD; Dale Mantey, PhD; Onyinye Omega-Njemnobi, MBBS; Benjamin Cristol, MPH; and Steven Kelder, PhD.

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JOURNAL

JAMA Network Open

DOI

10.1001/jamanetworkopen.2023.15980 

ARTICLE TITLE

Volunteering, Health, and Well-being of Children and Adolescents in the United States

Social participation promotes optimal aging in older adults, research shows

Findings underline the importance of engaging in volunteering and recreational activities among older adults

Peer-Reviewed Publication

UNIVERSITY OF TORONTO

TORONTO, CANADA –A new study followed more than 7000 middle aged and older Canadians for approximately three years to understand whether higher rates of social participation were associated with successful aging in later life. They found that those who participated in volunteer work and those participating in recreational activities were more likely to maintain excellent health across the subsequent 3-year study period and less likely to develop physical, cognitive, mental, or emotional problems.

The researchers defined successful aging as freedom from any serious physical, cognitive, mental, or emotional conditions that prevent daily activities, as well as high levels of self-reported happiness, good physical health, and mental health. The researchers only included participants who were successfully aging at the start of the study. The goal was to see whether social participation was associated with the likelihood that they would maintain excellent health.

Approximately 72% of these respondents who participated in volunteer or recreational activities at the start of the study were still aging successfully three years later. However, only two-thirds of those who were not participating in these activities were aging successfully at the end of the study. After taking into account a wide range of sociodemographic characteristics, the findings indicated that respondents who participated in recreational activities and volunteer or charity work were 15% and 17% more likely to maintain excellent health across the study, respectively.

“Although the study’s observational nature prohibits the determination of causality, it makes intuitive sense that social activity is associated with successful aging,” says first author, Mabel Ho, a doctoral candidate at the University of Toronto’s Factor-Inwentash Faculty of Social Work (FIFSW) and the Institute of Life Course and Aging. “Being socially active is important no matter how old we are. Feeling connected and engaged can boost our mood, reduce our sense of loneliness and isolation, and improve our mental health and overall health.”

Some medical professionals are now prescribing social activities for their patients, called ‘social prescribing’, a non-pharmacological intervention that integrates primary care with community services. Social prescribing can be used to encourage older adults to engage in volunteering and recreational activities.

“It is encouraging that there are ways to support our physical, cognitive, mental, and emotional well-being as we age. This is wonderful news for older adults and their families who may anticipate that precipitous decline is inevitable with age,” says senior author Esme Fuller-Thomson, Director of the Institute for Life Course & Aging and Professor at the University of Toronto's Factor-Inwentash Faculty of Social Work. “It is important for older adults, families, practitioners, policymakers, and researchers to work together to create an environment that supports a vibrant and healthy later life.”

The modified concept of successful aging introduced in this study is more inclusive than earlier studies and encompasses both objective and subjective measures of optimal aging. Most previous research on successful aging classified those with any chronic health conditions as not “aging successfully”.  In the current study, respondents could still be classified as “aging successfully” if they had chronic illness, as long as they can engage in various daily activities and are free of disabling chronic pain. The revised definition also incorporates older adults’ subjective perception of their aging process, physical health and mental health, as well as their self-reported emotional well-being such as happiness and life satisfaction. Most earlier studies had ignored the older adults’ subjective experience of aging.

The study was published online this week, in the International Journal of Environmental Research and Public Health. It uses longitudinal data from the baseline wave (2011-2015) and the first follow-up wave (2015-2018) of data from the Canadian Longitudinal Study on Aging (CLSA) to examine factors associated with optimal aging. The CLSA included 7,651 respondents who were aged 60 years or older at wave 2 who were in optimal health during the baseline wave of data collection. The sample was restricted to those who were in excellent health at baseline, which was only 45% of the respondents.

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JOURNAL

International Journal of Environmental Research and Public Health

DOI

10.3390//ijerph20126058 

METHOD OF RESEARCH

Survey

SUBJECT OF RESEARCH

People

ARTICLE TITLE

Is Social Participation Associated with Successful Aging among Older Canadians? Findings from the Canadian Longitudinal Study on Aging (CLSA).

ARTICLE PUBLICATION DATE

6-Jun-2023

Why are dog breeds with innate diseases popular?

Instead, the emphasis should be on highlighting that health issues should not be considered normal or acceptable characteristics because they often cause pain and suffering for the dogs.

Peer-Reviewed Publication

EÖTVÖS LORÁND UNIVERSITY (ELTE), FACULTY OF SCIENCE

 

IMAGE: FLAT-FACED DOGS, SUCH AS FRENCH AND ENGLISH BULLDOGS, ARE EXTREMELY POPULAR DESPITE SUFFERING FROM SEVERE INNATE DISEASES view more 

CREDIT: PHOTO: ZSOFIA BOGNAR / ELTE

Flat-faced dogs, such as French and English Bulldogs, are extremely popular despite suffering from severe innate diseases. Hungarian researchers have attempted to uncover the explanation for this paradox. In the end, they concluded that although enthusiasts of flat-faced dogs are aware of the health issues and strive to provide the best for their dogs, they are likely to normalize health problems.

The French and English Bulldogs are among the most popular breeds in both the United States and Europe, but Pugs and Boston Terriers also have a significant fan base. This is surprising considering the several innate health problems these breeds face. At least half of them struggle with breathing difficulties, they frequently have eye problems, and over eighty percent of them require C-sections during delivery. Due to their health issues, flat-faced dogs typically live three to four years less than what would be expected based on their body size. The life expectancy of French Bulldogs is only around four and a half years.

If these breeds have so many problems, what could be causing their popularity?

"Previously, we observed that flat-faced breeds are more inclined to form eye contact with humans. We assumed that this trait is appealing to owners. We also considered the possibility that the enthusiasts of these dogs might not be aware of the innate health issues," - said Zsófia Bognár, PhD student at the Department of Ethology, Eötvös Loránd University (ELTE), and the lead author of the study published in the journal Applied Animal Behaviour Science.

The researchers presented 25 pairs of photos of dogs looking into the camera and looking away, in an online survey. Furthermore, they assessed the respondents' personality traits, whether they liked flat-faced dogs, and whether they were aware of their health problems. A total of 1156 participants took part in the survey. Some results contradicted the researchers' expectations. It turned out that those who had a positive attitude towards flat-faced breeds randomly selected among the images. This finding suggests that despite the inclination of these dogs to form eye contact, it likely does not play a role in their popularity. On the other hand, those who preferred the photos of dogs looking into the camera were those who were sociable, easily made friends, and were capable of putting themselves in the position and perspective of others.

Interestingly, the respondents who liked flat-faced dogs were the most aware of the health problems. Overall, 99 percent of the respondents associated flat-faced breeds with breathing difficulties, 90 percent with dystocia, 61 percent with corneal ulceration, and only a few respondents associated them with fewer than four health problems. So, the health issues associated with flat-face are very much in public awareness.

In addition, it was also revealed that compared to the group who were neutral towards or disliked flat-faced breeds, enthusiasts of flat-faced dogs tend to be younger, have lower levels of education, and typically have no professional experience with dogs. In comparison to the neutral group, the enthusiasts are more likely to be women and have children. Compared to those who disliked flat-faced breeds, enthusiasts have higher emotional empathy, meaning they are more inclined to feel for the suffering of another living being.

"We expected that one of the main attractiveness of flat-faced dogs lies in their large eyes and that their owners would be delighted when the dogs look at them," said Eniko Kubinyi, head of the MTA-ELTE "Momentum" Companion Animal Research Group at ELTE. "However, we did not find this to be true, at least not from the photographs. It is also not true that enthusiasts of flat-faced breeds are unaware of the dogs' health problems or are insensitive to their emotions. On the other hand, it has been revealed that they are relatively inexperienced dog owners. Thus, it is most likely that they are unaware of the dogs' communication signals, may not necessarily recognize signs of pain, and likely consider health problems as normal breed characteristics.

For example, a snoring and grunting Bulldog appears cute to them, rather than sick and struggling for breath."

According to the results, therefore, even though enthusiasts of flat-faced dogs are aware of the innate health problems of these breeds, it does not discourage them from continuing to love these dogs.

"In many countries, there are awareness campaigns about the health issues of flat-faced breeds. However, the growing popularity of flat-faced dogs suggests that these campaigns are not very effective. It is clear that simply listing the health problems does not deter people from purchasing these dogs. Instead, the emphasis should be on highlighting that health issues should not be considered normal or acceptable characteristics because they often cause pain and suffering for the dogs. Dog owners need to be made aware that their choices play a significant role in shaping the health of dog breeds," said Zsófia Bognár.

  

Flat-faced dogs, such as French and English Bulldogs, are extremely popular despite suffering from severe innate diseases

CREDIT

Photo: Zsofia Bognar / ELTE

JOURNAL

Applied Animal Behaviour Science

DOI

10.1016/j.applanim.2023.105948 

ARTICLE TITLE

The brachycephalic paradox: The relationship between attitudes, demography, personality, health awareness, and dog-human eye contact

LGBTQ+

Health equity is the focus of LBGTQ+ Pride Month celebrations across the country

As Pride Month is commemorated by the LGBTQ+ community and allies, the American Heart Association seeks to increase awareness of the importance of health and wellness for all

Business Announcement

AMERICAN HEART ASSOCIATION

DALLAS, June 6, 2023 — According to a study recently published in the Journal of the American Heart Association, lesbian and bisexual women in France had poorer heart health than heterosexual women, a finding that could be attributed to discrimination and other stressors faced by the LGBTQ+ community. In support of Pride Month, the American Heart Association, a global force for longer, healthier lives for all, is promoting awareness and health education for all people across the spectrum of diversity, including those who identify as LGBTQ+.

For more than 50 years, the LGBTQ+ community has spent the month of June marching to commemorate its struggle and fight against discrimination in health care, employment, and housing across the country and around the globe. According to the American Heart Association’s 2021 scientific statement “Assessing and Addressing Cardiovascular Health in People Who Are Transgender and Gender Diverse”, higher levels of heart disease among transgender and gender diverse (TGD) people are linked to the stress of experiencing discrimination and transphobia at personal and societal levels. This population faces unique personal stressors that often result in negative coping behaviors that may complicate an individual’s cardiovascular health including a poor diet, elevated body mass index[1], low physical activity[2], and a smoking rate up to 2.5 times higher than heterosexual and cisgender adults[3].

“Recognizing and addressing the health care needs specific to the LGBTQ+ community is vital to the American Heart Association’s mission,” said volunteer president of the American Heart Association Michelle A. Albert, M.D., M.P.H., FAHA, who is the Walter A Haas-Lucie Stern Endowed Chair and professor of medicine, director of the CeNter for the StUdy of AdveRsiTy and CardiovascUlaR DiseasE (NURTURE Center) and associate dean of admissions at the University of California, San Francisco. “More research and advocacy are needed to understand this community’s unique health challenges. The Association is helping fill in the gap by funding innovative research, advocating for public health equity and sharing easily accessible lifesaving resources.”

The first step in improving cardiovascular health is knowing and understanding current risks. Since better cardiovascular health helps lower the risk of heart disease, stroke, dementia, diabetes and other major health problems, the American Heart Association has defined key measures for improving and maintaining cardiovascular health. Life’s Essential 8, focuses on eating better, increasing physical activity, quitting smoking, and improving sleep habits, while also recommending steps that can be taken to reach a healthy weight, control cholesterol, and manage both blood sugar and blood pressure.

Science-based downloadable resources are available to provide guidance to address each of the eight points. For example, they include information about how to read food labels, avoid trans fats, set physical activity goals and provide successful tips to quit smoking and reduce tech activity before going to sleep. Education about health risk factors and incorporating and addressing these eight items may be the key to improving and maintaining cardiovascular health as they provide a foundation for living a longer, healthier life.

The Association supports public policies that improve access to quality, affordable health care, including provisions of the Affordable Care Act that have increased the number of people with quality health coverage. We also support policies that prevent the tobacco industry from targeting LGBTQ+ communities and others with deadly tobacco products. We work to educate youth and young adults who are LGBTQ+ and their allies about the importance of advocating for such policies.

Additional Resources:

• AHA News: Lesbian and bisexual women may have worse heart health: https://www.heart.org/en/news/2023/05/17/lesbian-and-bisexual-women-may-have-worse-heart-health 
• Life’s Essential 8: www.heart.org/lifes8
• American Heart Association Pride with Heart: https://www.heart.org/en/about-us/diversity-inclusion/pride-with-heart
• Discrimination contributes to poorer heart health for LGBTQ adults (AHA scientific statement, 2020): https://www.ahajournals.org/doi/10.1161/CIR.0000000000000914
• Discrimination, stress linked to poorer heart health in transgender, gender diverse adults (AHA scientific statement, 2021): https://www.ahajournals.org/doi/full/10.1161/CIR.0000000000001003
• Let’s Snuff Out Tobacco video about the deadly consequences of the tobacco industry’s predatory marketing for the LGBTQ+ community

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About the American Heart Association

The American Heart Association is a relentless force for a world of longer, healthier lives. We are dedicated to ensuring equitable health in all communities. Through collaboration with numerous organizations, and powered by millions of volunteers, we fund innovative research, advocate for the public’s health and share lifesaving resources. The Dallas-based organization has been a leading source of health information for nearly a century. Connect with us on heart.org, Facebook, Twitter or by calling 1-800-AHA-USA1.   

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​[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343694/

[2] Assessing and Addressing Cardiovascular Health in LGBTQ Adults: A Scientific Statement from the American Heart Association | Circulation (ahajournals.org)

[3] https://tobaccocontrol.bmj.com/content/18/4/275.long?subject=

Women who identify as bisexual women at higher risk of suicide and suicide attempts, study finds

Peer-Reviewed Publication

YORK UNIVERSITY

Toronto, ON, June 7, 2023 – Women who identify as bisexual were more than three times more likely to attempt suicide compared to heterosexual women, according to a new study by a group of researchers at York University and ICES published online today.

The research, which is the first to link population-based survey data with health records for over 123,000 individuals, also found that gay men and gay women/lesbians were twice as likely to attempt suicide, both fatal and non-fatal, which the team refers to as a suicide-related behaviour (SRB) event, compared to heterosexual individuals. The findings point to an urgent need for better mental health supports within the LGBTQ+ community.

“We wanted to better characterize the disparity in suicide-related behaviours across sexual orientations and gender,” says lead author Antony Chum, a Faculty of Health assistant professor and Canada Research Chair in Population Health Data Science at York University and adjunct scientist at ICES. “Prior research on suicide attempts has mostly relied on self-reported data from surveys, which means we don’t have information on people who are too sick to participate or have died by suicide.”

Published in the American Journal of Psychiatry, the study looked at Ontario participants from the Canadian Community Health Survey, which was linked to anonymous administrative health data such as emergency room visits or hospitalizations for non-fatal self-harm and fatal suicide events between 2002 and 2019.

The researchers, who include York University postdoctoral fellows Gabriel John Dusing and Chungah Kim, found:

• Overall prevalence of one or more SRB events was around two per cent in heterosexual individuals, five per cent in gay/lesbian individuals, and eight per cent in bisexual individuals.
• Sexual minority individuals were at higher risk of SRB events, ranging from 2.10 to 4.23 times more likely when compared to heterosexual people.
• After adjusting for age and gender, the risk of a SRB event was more than three times greater among bisexual individuals, and this risk was most pronounced for bisexual women.

“The higher risk for bisexual women could be attributed to greater discrimination that bisexual people face within the LGBTQ+ community, as well as higher rates of violence, trauma, and caregiving burden that bisexual women may experience in opposite-sex relationships,” says Chum.

One limitation of the study is that data were not available for non-binary individuals and sexual orientations such as asexual and queer. Nevertheless, this was the first study to use a large representative sample linked with medical records, which improves the generalizability of the findings for other regions and populations.

“The study shows a clear need for better funding, policy and programming to address LGBTQ+ suicide risk,” says Chum. “We also need increased training for healthcare workers to address LGBTQ+ suicide risk. Further, we want to encourage hospitals and clinics to collect sexual orientation data as part of routine patient care.”

Chum also notes the increasing creep of healthcare privatization and that publicly funded mental health supports need to be increased not just for LGBTQ+ people, but across the board.

The findings align with the authors’ related study published in March in PLOS One, which found that both sexual minority status and residing in under-resourced neighbourhoods with poor access to healthcare, were independent risk factors for suicide-related behaviours. Future research needs to explore interventions that improve the mental health of LGBTQ+ people while addressing social determinants of health, such as neighbourhood-level disparities and barriers to healthcare.

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York University is a modern, multi-campus, urban university located in Toronto, Ontario. Backed by a diverse group of students, faculty, staff, alumni and partners, we bring a uniquely global perspective to help solve societal challenges, drive positive change, and prepare our students for success. York's fully bilingual Glendon Campus is home to Southern Ontario's Centre of Excellence for French Language and Bilingual Postsecondary Education. York’s campuses in Costa Rica and India offer students exceptional transnational learning opportunities and innovative programs. Together, we can make things right for our communities, our planet, and our future. 

ICES is an independent, non-profit research institute that uses population-based health information to produce knowledge on a broad range of healthcare issues. Our unbiased evidence provides measures of health system performance, a clearer understanding of the shifting healthcare needs of Ontarians, and a stimulus for discussion of practical solutions to optimize scarce resources. ICES knowledge is highly regarded in Canada and abroad and is widely used by government, hospitals, planners, and practitioners to make decisions about care delivery and to develop policy. In October 2018, the institute formerly known as the Institute for Clinical Evaluative Sciences formally adopted the initialism ICES as its official name. For the latest ICES news, follow us on Twitter: @ICESOntario

FOR FURTHER INFORMATION PLEASE CONTACT:

Emina Gamulin,
York University Media Relations,
437-217-6362, egamulin@yorku.ca

Misty Pratt
Senior Communications Officer, ICES
Misty.Pratt@ices.on.ca 613-882-7065

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JOURNAL

American Journal of Psychiatry

ARTICLE TITLE

Disparities in Suicide-Related Behaviors Across Sexual Orientations by Gender: A Retrospective Cohort Study Using Linked Health Administrative Data

ARTICLE PUBLICATION DATE

7-Jun-2023